1 October 1992 Optical generation of logarithmic harmonic filters for projection invariant pattern recognition
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Optical Engineering, 31(10), (1992). doi:10.1117/12.59994
Abstract
Invariant pattern recognition systems are based on spatial filters that are in most cases computer-generated holograms. Logarithmic harmonics were suggested to be used in implementations that perform projection invariant pattern recognition. A novel approach for optical generation of logarithmic harmonic matched filters of a universal nature, usable for arbitrary input patterns, is presented, followed by some initial experimental results.
Naim Konforti, David Mendlovic, Emanuel Marom, "Optical generation of logarithmic harmonic filters for projection invariant pattern recognition," Optical Engineering 31(10), (1 October 1992). http://dx.doi.org/10.1117/12.59994
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KEYWORDS
Optical filters

Computer generated holography

Pattern recognition

Spatial filters

Image filtering

Fourier transforms

Optical pattern recognition

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